Re: 300 RUM and Retumbo
I was able to get 96 gr of Retumbo behind 200 AB's @ about .020 off the lands. 96.5 sometimes showed some slight signs of pressure. My chrony readings were a littel sketchy, but about 3200 fps or so is what I think I was getting. I ran out of 200 AB's and went with my 180 E-Tip load, so I didn't pursue any more development with the 200's.
Rem brass and Fed GM215M